Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> 89fd8720c3870fd2eca7d9791c668902ae510dfba81a7512d4193c1a49b3caba:14:8
   |
14 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^